IBM 3270 Maintenance Manual page 127

You may receive an error code similar to the
example shown below. If you do, write down the
7 character error code (indicated by the arrow in
the example below.)
XXXKB OK
XXXXX XX 201
-<<<ff------
XXXX
ERROR-(RESUME="F1" KEY)
DID YOU COMPLETE POST WITH AN
ERROR MESSAGE SIMILAR TO THE
EXAMPLE ABOVE?
YES Press the PFI Key and continue on the
next page.
NO
3-200-2 Maintenance· Information